I'm subletting a room in my flat share appartment over holidays. The room is spacious and fully furnished. There is WLAN, a washing mashine, bed sheets and a kitchen you can use. The neighborhood is quite buzzling, there are tons of bars, restaurants and clubs in the area. Two subway lines within 3-5 min. The amazing Tempelhhofer Feld is around the corner.
I have flat mates from different nationalities that are all very welcoming and happy to meet you.